balloon knot
- noun
- She learned how to make a tight balloon knot for her party decorations.
Examples
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Without a proper balloon knot, the helium quickly escaped from the balloon.
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He twisted the end and tied a balloon knot to keep the air inside.
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Wow! Look at that balloon knot!
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She tied a balloon knot to keep the air inside.
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He twisted the end and tied a balloon knot to keep the air inside.
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Without a proper balloon knot, the helium quickly escaped from the balloon.
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She learned how to make a tight balloon knot for her party decorations.
Synonyms
A way of tying the end of a rope to stop it slipping through a hole
A knot tied at the end of a rope to stop the end passing through an opening
Surface Forms
Morphology
The meaning is directly and transparently derived from combining 'balloon' (an inflatable bag) with 'knot' (a fastening) — a knot used to seal a balloon. This straightforward noun–noun composition follows common morphological patterns and is cross-linguistically familiar, so a B1 learner who knows both constituents would readily infer the meaning.
Etymology
Balloon knot comes from the simple act of tying a knot in the thin neck of a balloon after you blow it up. That tied knot 'keeps the air inside', so the phrase means the small knot used to close a blown-up balloon.